The Portevin–Le Chatelier effect: a review of experimental findings

A Yilmaz - Science and technology of advanced materials, 2011 - iopscience.iop.org
Abstract The Portevin–Le Chatelier (PLC) effect manifests itself as an unstable plastic flow
during tensile tests of some dilute alloys under certain regimes of strain rate and …

Scale invariance in plastic flow of crystalline solids

M Zaiser - Advances in physics, 2006 - Taylor & Francis
From the traditional viewpoint of continuum plasticity, plastic deformation of crystalline solids
is, at least in the absence of so-called plastic instabilities, envisaged as a smooth and quasi …

Quasi-periodic events in crystal plasticity and the self-organized avalanche oscillator

S Papanikolaou, DM Dimiduk, W Choi, JP Sethna… - Nature, 2012 - nature.com
When external stresses in a system—physical, social or virtual—are relieved through
impulsive events, it is natural to focus on the attributes of these avalanches,. However …

[图书][B] Plastic deformation of nanostructured materials

AM Glezer, EV Kozlov, NA Koneva, NA Popova… - 2017 - taylorfrancis.com
Plastic Deformation of Nanostructured Materials offers comprehensive analysis on the most
important data and results in the field of materials strength and mechanics. This reference …

Evidence for universal intermittent crystal plasticity from acoustic emission and high-resolution extensometry experiments

J Weiss, T Richeton, F Louchet, F Chmelik… - Physical Review B …, 2007 - APS
Plasticity, a key property in the mechanical behavior and processing of crystalline solids, has
been traditionally viewed as a smooth and homogeneous flow. However, using two …

Avalanches and scaling in plastic deformation

M Koslowski, R LeSar, R Thomson - Physical review letters, 2004 - APS
Plastic deformation of crystalline materials is a complex nonhomogeneous process
characterized by avalanches in the motion of dislocations. We study the evolution of …

On the similarity of plastic flow processes during smooth and jerky flow: Statistical analysis

MA Lebyodkin, NP Kobelev, Y Bougherira… - Acta Materialia, 2012 - Elsevier
Jerky flow in dilute alloys, or the Portevin–Le Chatelier effect, is investigated using statistical
analysis of time series characterizing the evolution of the plastic activity at distinct scales of …

Stochastic dislocation kinetics and fractal structures in deforming metals probed by acoustic emission and surface topography measurements

A Vinogradov, IS Yasnikov, Y Estrin - Journal of Applied Physics, 2014 - pubs.aip.org
We demonstrate that the fractal dimension (FD) of the dislocation population in a deforming
material is an important quantitative characteristic of the evolution of the dislocation …

Spatiotemporal correlations in the Portevin-Le Chatelier band dynamics during the type B-type C transition

M Mehenni, H Ait-Amokhtar, C Fressengeas - Materials Science and …, 2019 - Elsevier
The spatiotemporal aspects of the Portevin-Le Chatelier (PLC) instability are investigated,
using infrared thermography, in an Al-4.5% Mg alloy loaded at room temperature in simple …

Evolution of fractal structures in dislocation ensembles during plastic deformation

A Vinogradov, IS Yasnikov, Y Estrin - Physical review letters, 2012 - APS
Based on the irreversible thermodynamics approach to dislocation plasticity of metals, a
simple description of the dislocation density evolution and strain hardening was suggested …